Observation 104882: Degelia ligulata P.M. Jørg. & P. James

When: 2012-08-04

Collection location: Monte de S. Bartolomeu, Nazaré, Portugal [Click for map]

Who: zaca

No specimen available

This a rare species, even more fertile, I saw for the first time. It and was growing in a vertical exposed rock. According to 1: “Very similar to D. atlantica (see observation 72617) and to D. plumbea (see observation 77492) but with numerous elongate schizidia (flattened to spoon-shaped isidia). Schizidia often blackened at tips. Apothecia are very rare, the discs brown to black. Part of Macaronesian element in British and Irish lichen flora”. I made the microscopy to observe the spores but the photos are quite bad. Even so I could confirm their similarity wih those of D. plumbea, being hialine, fusiform and with appproximate dimensions of 15 × 6 µm. It fits very well the descriptions given in the references.

Proposed Names

87% (1)
Eye3 Eyes3
Used references: 1Irish lichens
3 Smith et al., The Lichens of Great Britain and Ireland, The British Lichen Society, 2009.
Based on microscopic features

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2012-08-12 19:18:55 CEST (+0200)
Last modified: 2012-08-12 19:18:57 CEST (+0200)
Viewed: 30 times, last viewed: 2017-06-14 01:31:31 CEST (+0200)
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